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<h1 class="topictitle1">Step 2: Registering an OceanBase Cluster</h1>
<div><div class="section"><h4 class="sectiontitle">Prerequisites</h4><ul><li>Before registering an OceanBase cluster, ensure that each host in the cluster has been registered.</li><li>Due to the restrictions of the NFS4.1 protocol, the host name in the same cluster must be unique.</li></ul>
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<div class="section"><h4 class="sectiontitle">Procedure</h4><ol><li><span>Choose <span class="uicontrol" id="EN-US_TOPIC_0000001792742826__en-us_topic_0000001839142377_uicontrol1753625610161"><b><span id="EN-US_TOPIC_0000001792742826__en-us_topic_0000001839142377_text19536165671619"><strong>Protection</strong></span> &gt; Databases &gt; OceanBase</b></span>.</span></li><li><span>Click the <span class="uicontrol"><b><span><strong>Cluster</strong></span></b></span> tab.</span></li><li><span>Click <span class="uicontrol"><b><span><strong>Register</strong></span></b></span> to register the OceanBase cluster.</span></li><li><span>Configure the cluster information.</span><p><p><a href="#EN-US_TOPIC_0000001792742826__table9362130125912">Table 1</a> describes the related parameters.</p>

<div class="tablenoborder"><a name="EN-US_TOPIC_0000001792742826__table9362130125912"></a><a name="table9362130125912"></a><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001792742826__table9362130125912" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Cluster parameters</caption><colgroup><col style="width:21.61%"><col style="width:78.39%"></colgroup><thead align="left"><tr><th align="left" class="cellrowborder" valign="top" width="21.61%" id="mcps1.3.2.2.4.2.2.2.3.1.1"><p>Parameter</p>
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<th align="left" class="cellrowborder" valign="top" width="78.39%" id="mcps1.3.2.2.4.2.2.2.3.1.2"><p>Description</p>
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<tbody><tr><td class="cellrowborder" valign="top" width="21.61%" headers="mcps1.3.2.2.4.2.2.2.3.1.1 "><p><span><strong>Name</strong></span></p>
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<td class="cellrowborder" valign="top" width="78.39%" headers="mcps1.3.2.2.4.2.2.2.3.1.2 "><p>Customize a cluster name.</p>
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<tr><td class="cellrowborder" valign="top" width="21.61%" headers="mcps1.3.2.2.4.2.2.2.3.1.1 "><p><span><strong>Username</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="78.39%" headers="mcps1.3.2.2.4.2.2.2.3.1.2 "><p>Enter the username of the OceanBase database administrator.</p>
</td>
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<tr><td class="cellrowborder" valign="top" width="21.61%" headers="mcps1.3.2.2.4.2.2.2.3.1.1 "><p><span><strong>Password</strong></span></p>
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<td class="cellrowborder" valign="top" width="78.39%" headers="mcps1.3.2.2.4.2.2.2.3.1.2 "><p>Enter the password of the OceanBase database administrator.</p>
</td>
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<tr><td class="cellrowborder" valign="top" width="21.61%" headers="mcps1.3.2.2.4.2.2.2.3.1.1 "><p><strong>Log Archive Interval</strong></p>
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<td class="cellrowborder" valign="top" width="78.39%" headers="mcps1.3.2.2.4.2.2.2.3.1.2 "><p>Controls the interval for generating checkpoint jobs in cold partitions to promote the OceanBase log archive progress.</p>
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<tr><td class="cellrowborder" valign="top" width="21.61%" headers="mcps1.3.2.2.4.2.2.2.3.1.1 "><p><span><strong>OBClient Host</strong></span></p>
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<td class="cellrowborder" valign="top" width="78.39%" headers="mcps1.3.2.2.4.2.2.2.3.1.2 "><p>Select the registered OBClient host.</p>
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<tr><td class="cellrowborder" valign="top" width="21.61%" headers="mcps1.3.2.2.4.2.2.2.3.1.1 "><p><span><strong>OBServer Host</strong></span></p>
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<td class="cellrowborder" valign="top" width="78.39%" headers="mcps1.3.2.2.4.2.2.2.3.1.2 "><p>Select the registered OBServer host and enter its service IP address and port number. The default port number is <strong>2881</strong>.</p>
<p>If there are multiple OBServer hosts, click <strong>Add</strong> in sequence to add all hosts.</p>
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<div class="note"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p>Before registering the cluster, log in to the OBClient host and run the following command to check whether the preceding parameters are available: If the OBServer host can be properly connected after the command is executed, the parameter settings are correct.</p>
<pre class="screen">obclient -h<em>OBServer host service IP address</em> -P<em>Port number</em> -u<em>Administrator username</em> -p<em>Administrator password</em> -A</pre>
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</p></li><li><span>Click <span class="uicontrol"><b>OK</b></span>.</span></li></ol>
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<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="en-us_topic_0000001792583074.html">Backing Up OceanBase</a></div>
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